Ch 22 : Ex.22 (B) : Cone : Surface Area and volume (continued)
We work at Ex.22 (B) Nos.4, 5, 6, 7
We use proportion in these sums. The word 'ratio'also features in these sums. Please remember that a proportion may be viewed as follows - a : b : : x : y (a is to be as x is to y). This same information may be written in ratio for as a/b = x/y (a divided by b equals x divided by y).
For instance in sum no.6 we are told the slant heights of two cones are in the ratio of 5 : 4. Thus if the shorter slant height is 4x the larger one will be 5x
In sum no.4 the radius and height of the cone are in proportion. In sum nos.5, 6, 7 certain characteristics of two cones are in proportion. In sums no.5, 6, 7 the answer required is also in a ratio.
Okay, so carry on and if you have a problem - I am only an e-mail away at broelmiranda@gmail.com
Take Care.
We work at Ex.22 (B) Nos.4, 5, 6, 7
We use proportion in these sums. The word 'ratio'also features in these sums. Please remember that a proportion may be viewed as follows - a : b : : x : y (a is to be as x is to y). This same information may be written in ratio for as a/b = x/y (a divided by b equals x divided by y).
For instance in sum no.6 we are told the slant heights of two cones are in the ratio of 5 : 4. Thus if the shorter slant height is 4x the larger one will be 5x
In sum no.4 the radius and height of the cone are in proportion. In sum nos.5, 6, 7 certain characteristics of two cones are in proportion. In sums no.5, 6, 7 the answer required is also in a ratio.
Okay, so carry on and if you have a problem - I am only an e-mail away at broelmiranda@gmail.com
Take Care.
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